Nome original: ハードナッツ！
Data de lançamento: 20 de outubro de 2013
Série
Tempo médio: 0 minutos
Gêneros: Crime, Mistério
Sinopse: Kurumi Nanba is a student majoring in math at prestigious university. She's viewed as a weirdo due to her poor communication skills, but having a genius level intellect. Meanwhile, Tatsuhiko Handa is a young detective. Kurumi Nanba and Tatsuhiko Handa work together to solve difficult cases including a series of bomb explosions, a locked-room murder and corporate blackmail.